Nursing Elites

1. Fill in the blanks in the following sentence: Enzymes are ________ molecules that serve as _______ for certain biological reactions.

• A. complex; suppressors
• B. acidic; triggers
• C. small; targets
• D. large; catalysts

Correct answer: D

Rationale: Enzymes are large molecules that act as catalysts, accelerating chemical reactions by lowering the activation energy required for the reactions to occur. In the context of biological reactions, enzymes function as catalysts, not suppressors, triggers, or targets. The use of 'large' and 'catalysts' accurately describes the nature and role of enzymes in facilitating biological processes.

2. Which of the following statements most accurately summarizes the passage?

• A. Tobacco is less healthy than many alternatives.
• B. Tobacco is deadly, expensive, and socially unappealing.
• C. The US typically taxes tobacco products, leading to high prices.
• D. Tobacco products shorten smokers' lives by ten years and kill millions.

Correct answer: B

Rationale: The correct answer is B. The passage extensively details the destructive nature of smoking tobacco products, highlighting the numerous harmful chemicals, addictive properties of nicotine, increased risk of various cancers, serious health conditions, and premature deaths associated with smoking. It also mentions the high costs due to government taxation on tobacco products, alongside the negative social aspects like the smell and staining effects. Choice A is incorrect as the passage emphasizes the severe dangers rather than comparing the healthiness of tobacco to other alternatives. Choice C is incorrect as it focuses solely on the financial aspect of tobacco taxation, omitting the broader health and social consequences discussed in the passage. Choice D is partially correct but not as comprehensive as choice B, which encapsulates the deadly, expensive, and socially unappealing nature of tobacco use as portrayed in the passage.

3. Antigen-antibody binding is the principle behind:

• A. Vaccination
• B. Disinfection
• C. Sterilization
• D. Antibiotic resistance

Correct answer: A

Rationale: Antigen-antibody binding is the principle behind vaccination. When a vaccine containing antigens (weakened or killed pathogens) is introduced into the body, the immune system produces antibodies that bind to these antigens. This binding triggers an immune response, leading to the production of memory cells that provide immunity against future infections by the same pathogen. Vaccination helps the body develop immunity without causing the disease itself, thereby protecting individuals from infectious diseases. Disinfection and sterilization involve different processes to eliminate or reduce pathogens on surfaces or objects. Antibiotic resistance is a phenomenon where bacteria evolve to resist the effects of antibiotics and is not directly related to antigen-antibody binding.

4. What is the main factor limiting population growth in K-strategists?

• A. Predation
• B. Availability of resources
• C. Competition
• D. Disease

Correct answer: B

Rationale: K-strategists are species with a low reproductive rate that invest more resources in raising fewer offspring. These species typically live in stable environments with limited resources. The main factor limiting population growth in K-strategists is the availability of resources such as food, shelter, and space. When resources are scarce, K-strategists may struggle to find enough to support their population size, leading to reduced reproductive success and population growth. While predation, competition, and disease can also impact population growth, the primary limiting factor for K-strategists is the availability of resources.

5. Which of the following uses correct spelling?

• A. Leslie knew that training for the Philadelphia Marathon would take discipline and perseverance, but she was up to the challenge.
• B. Leslie knew that training for the Philadelphia Marathon would take discipline and perseverance, but she was up to the challenge.
• C. Leslie knew that training for the Philadelphia Marathon would take disiplin and perservearance, but she was up to the challenge.
• D. Leslie knew that training for the Philadelphia Marathon would take discipline and perseverance, but she was up to the challenge.

Correct answer: D

Rationale: Option D correctly spells the words 'discipline' and 'perseverance.' The correct spelling of these words is crucial for effective communication and clarity in writing. In options A, B, and C, there are misspellings of 'discipline' and 'perseverance,' which can lead to confusion and impact the overall quality of the writing. Thus, option D is the correct choice as it accurately represents the correct spelling of both words.

Similar Questions